Method and device for improving imaging precision of prestack depth offset

The invention provides a method and device for improving the imaging precision of prestack depth offset. The method comprises the following steps that epicenter data and prestack shot data are read; the epicenter data and the prestack shot data are processed to obtain a combined imaging result; mult...

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Bibliographic Details
Main Authors GUO QINGXIN, ZHUANG XIJIN, JIN DI, YANG CUN, YE YUEMING
Format Patent
LanguageChinese
English
Published 11.05.2016
Subjects
CALCULATING
COMPUTING
COUNTING
DETECTING MASSES OR OBJECTS
ELECTRIC DIGITAL DATA PROCESSING
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Summary:The invention provides a method and device for improving the imaging precision of prestack depth offset. The method comprises the following steps that epicenter data and prestack shot data are read; the epicenter data and the prestack shot data are processed to obtain a combined imaging result; multiples in the prestack shot data is carried out to obtain prediction data of surface multiples; the epicenter data and the prediction data are processed to obtain interference noise; a combined prestack depth offset result is subtracted from the interference noise by matching to obtain a combined prestack depth offset result after attenuation of the interference noise; and the combined prestack depth offset result after attenuation of the interference noise is displayed as an earthquake profile image. According to the method and device provided by the invention, the interference noise generated in the offset process is attenuated, and the imaging precision is improved.
Bibliography:Application Number: CN20141554812